Electric conductor

a technology of electric conductors and conductors, applied in the direction of conductors, non-insulated conductors, ohmic resistance heating, etc., can solve the problems of ag—cu alloy, ag-cu alloy, and copper is still susceptible to attack

Inactive Publication Date: 2010-02-25
GENTHERM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, unless the silver coating is impervious, the copper is still susceptible to attack.
This results in the formation of a boundary layer comprising a Ag—Cu alloy, which is extremely brittle.
Fractures in this boundary layer form incipient cracks that likewise endanger the conductor.
A major disadvantage of this material combination is the high cost.
Moreover, the corrosion resistance of copper jackets is not always sufficient for certain applications.
However, an assembly of this kind is not very fracture-proof.

Method used

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Embodiment Construction

[0013]FIG. 1 shows a vehicle 200.

[0014]In it, various functional elements 5 may be provided, e.g. a seat heating, a seat-occupancy detection means or a keypad 60, which make a certain function such as heating, pressure detection or switching available pointwise or in two dimensions in certain zones of the vehicle interior.

[0015]To this end, at least one of the functional elements 5 is provided with at least one electrical conductor 25 according to FIG. 2, 2a, 2b or 3.

[0016]This conductor may be, for example, a heating conductor 2, a contact conductor 3, an electric cut-out and / or a connection line 48.

[0017]It is arranged in contact with, in or near to the functional zone, e.g. at least partially in contact with and / or in a seat cover 30.

[0018]It may be of planar configuration or, as in the embodiments of FIGS. 2 and 3, strand-shaped. A strand is a longish structure whose longitudinal dimensions by far exceed its cross-sectional dimensions. Preferably, the two cross-sectional dimensi...

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Abstract

This invention relates to an electrical conductor (25) which is composed at least partially of an electrically conductive material.
According to the invention, at least part of the electrical conductor (25) is provided with a protective layer (11) whose specific electrical conductivity is lower, at least locally, than that of the electrically conductive material of the conductor (25).

Description

[0001]This invention relates to an electrical conductor according to the preamble of claim 1 and to its use in heating elements, sensors, seats and vehicles.PRIOR ART[0002]It is known practice to silver-plate copper conductors in order to protect them against corrosion. However, unless the silver coating is impervious, the copper is still susceptible to attack. Moreover, the silver diffuses with time into the copper. This results in the formation of a boundary layer comprising a Ag—Cu alloy, which is extremely brittle. Fractures in this boundary layer form incipient cracks that likewise endanger the conductor.[0003]Jacketed wires, as they are generally known, may be used to overcome this problem. In this case, electrical conductors are provided with a steel core and a copper jacket, as disclosed in DE 196 38 372 A1 or DE 102 06 336 A1. A jacketed wire comprising a platinum jacket and a core made of a material containing precious metal is known from DE 38 32 342 C1. A major disadvant...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H01B5/00
CPCH01B1/22H05B1/0238H05B3/34H05B2203/003H05B2214/04H05B2203/011H05B2203/015H05B2203/017H05B2203/029H05B2203/005H01B1/02H01B5/02
Inventor WEISS, MICHAELTREMMEL, PETERVOLK, MARKUS
Owner GENTHERM GMBH
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